CN107641425B - Metal plate with non-stick coating - Google Patents
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Abstract
The invention relates to a metal plate with a non-stick coating, which comprises a metal substrate and a high-temperature resistant non-stick coating coated on the substrate, wherein the high-temperature resistant non-stick coating is produced by the following method: putting the modified 609 epoxy resin liquid, the organic silicon resin, the phenylated amino resin, the acetal amino resin and the coupling agent into a paint mixing kettle, and controlling the stirring speed to be 800-1000 RPM; adding the pearlescent base material, the polytetrafluoroethylene powder and the epoxy carbon black slurry under the stirring condition, and after the feeding is finished, increasing the dispersion rotating speed and controlling the dispersion rotating speed at 1000-1500RPM until the fineness meets the requirement; and after the fineness meets the requirement, controlling the stirring rotating speed at 500-800RPM, adding the pre-mixed coating aluminum silver paste and PMA mixed paste, and adjusting the viscosity of the paint by using n-butyl alcohol and cyclohexanone. The metal plate with the non-stick coating is non-toxic, high temperature resistant and good in non-stick performance.
Description
Technical Field
The invention relates to a metal plate, in particular to a metal plate with non-stick paint.
Background
In the food culture of western countries, baking molds having non-stick properties are widely used for food processing such as baking trays for bread, molds for cakes, coffee cups, and the like. With the continuous development of national economy and the improvement of the living standard of people, the use amount of non-stick appliances in China is increased dramatically. The Teflon coating used internationally and domestically at present has the following defects when being used as a non-stick coating:
1. the chemical components of teflon, namely tetrafluoroethylene, are subjected to ash cracking at high temperature to generate highly toxic byproducts, namely fluorophosphone and perfluoroisobutylene, which are banned by the U.S. government;
2. the Teflon tetrafluoroethylene coating can be formed into a film only by baking at high temperature (300 ℃), so that the energy consumption is too high, and the Teflon tetrafluoroethylene coating is not suitable for being used in coil coating lines and sheet coating lines.
3. The mechanical processing performance of the coating film is poor, but the Teflon coating can be sprayed after the tool is processed and then is subjected to acid pickling and phosphating, so that the production process cost is increased and the environmental pollution is caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a metal plate with non-stick coating, which has simple production process, no toxicity, high adhesion of the non-stick coating, high temperature resistance and good non-stick performance, and meets the food sanitation requirement.
In order to solve the technical problem, the invention provides a metal plate with a non-stick coating, which comprises a metal substrate and a high-temperature resistant non-stick coating coated on the substrate, wherein the high-temperature resistant non-stick coating is produced by the following method:
step A, 609 epoxy resin neutralization treatment, namely firstly mixing xylene, butanol and phosphoric acid, then putting the mixture into a reaction pot, then putting 609 epoxy resin into the reaction pot, heating the mixture in the reaction pot at 160-170 ℃ until the 609 epoxy resin is completely dissolved, stirring the mixture, keeping the temperature of the xylene at 180-190 ℃ as reflux for 2 hours, immediately cooling and discharging the mixture, and filtering and packaging the mixture for later use;
b, mixing and dispersing, namely putting the modified 609 epoxy resin liquid obtained in the step 1, the organic silicon resin, the phenylated amino resin, the acetal amino resin and the coupling agent into a paint mixing kettle, and controlling the stirring speed to be 800-; adding the pearlescent base material, the polytetrafluoroethylene powder and the epoxy carbon black slurry under the stirring condition, and after the feeding is finished, increasing the dispersion rotating speed and controlling the dispersion rotating speed at 1000-1500RPM until the fineness meets the requirement;
c, low-speed mixing and dispersing, namely after the fineness meets the requirement, controlling the stirring rotating speed at 800RPM, adding pre-mixed coating aluminum silver paste and PMA mixed paste, and adjusting the viscosity of the paint by using n-butyl alcohol and cyclohexanone;
and D, filtering to obtain the high-temperature-resistant non-stick coating.
As an improvement of the above technical solution, in the step a, 609 the epoxy resin is used in an amount of 70 parts by weight, xylene is used in an amount of 20 parts by weight, butanol is used in an amount of 10 parts by weight, and phosphoric acid is used in an amount of 0.013 parts by weight.
As an improvement of the above technical solution, in the step B, the modified 609 epoxy resin solution is used in an amount of 35 to 42 parts by weight; the dosage of the organic silicon resin liquid is 8-12 parts by weight; 3-5 parts of phenylated amino resin; the usage amount of the acetal amino resin is 3-6 parts by weight; the amount of the coupling agent is 0.2-0.6 weight part.
As an improvement of the above technical solution, wherein the coupling agent is a silane coupling agent.
As an improvement of the above technical solution, in the step B, the pearlescent base material is used in an amount of 15 to 25 parts by weight; 3-6 parts of polytetrafluoroethylene powder; the epoxy carbon black slurry is used in 0.2-0.6 weight portions.
As an improvement of the above technical solution, in the step C, the amount of the coated aluminum silver paste is 4 to 8 parts by weight; the amount of PMA is 2-5 weight parts.
As an improvement of the above technical scheme, in the step C, the n-butanol is used in an amount of 2 to 3 parts by weight; the using amount of the cyclohexanone is 1-3 parts by weight.
The silicone resin in the formula can be adjusted by different types of silicone resins according to different plate materials and processing requirements, and can be crosslinked with the phenylated amino resin (230 ℃) at high temperature to form a paint film, and the paint film has the advantages of strong adhesive force, boiling resistance, flexibility, good machinability, high temperature resistance and the like.
The carbon black slurry in the formula is a coloring pigment, and a Z111 product which is produced by Shanghai Denyan original company and has high wear resistance and high temperature resistance (300 ℃) is adopted, so that the auxiliary effect of the wear resistance of the surface of a paint film is achieved.
The pearlescent base material has the advantages of paint film surface abrasion resistance, long-acting non-adhesiveness and high-temperature stability in the formula, and adopts 100G products of south Korean CQV company.
The polytetrafluoroethylene powder, namely PTFE micropowder wax, plays a role in improving the abrasion resistance, long-acting non-adhesiveness and high-temperature stability of the surface of a paint film in the formula.
The n-butyl alcohol, PMA and cyclohexanone play a role in adjusting the construction viscosity of the paint and improving the leveling property of a paint film in the formula.
The coupling agent in the formula can improve the adhesive force of the paint film on the metal surface and improve the density and water resistance of the paint film.
Compared with the prior art, the invention has the following advantages:
the invention has the advantages that 609 epoxy resin is adopted, phosphoric acid is added, and dimethylbenzene is used as a reflux solvent for phosphoric acid neutralization treatment at the temperature of 180-190 ℃, so that low-molecular free chemicals are eliminated, and the adhesive force, flexibility and boiling resistance of the epoxy resin are improved.
The invention has the second advantage that the modified 609 epoxy resin, the phenylated amino resin, the acetal amino resin, the organic silicon high-temperature resistant resin and the silane coupling agent are adopted as the non-stick coating base material, so that the corrosion resistance, the water resistance, the high temperature resistance, the mechanical processability and the reliability of food safety of a coating film are ensured.
The invention has the third advantage that the pearly-lustre base material is adopted to replace most of tetrafluoroethylene resin. The pearlescent base material has the advantages of high temperature resistance, small friction coefficient and corrosion resistance, so that the non-stick effect is effective for a long time, and simultaneously, the food safety requirement is met.
The paint obtained by the production method can be directly precoated on steel plates and aluminum plates of coiled materials and sheets and then processed into baking tools, so that the traditional production process flow is reduced, and the problem of environmental pollution is greatly reduced.
The invention has the fifth advantage that the traditional Teflon coating needs to be dried at 300 ℃ for 1 hour, and has poor machining performance, so roll coating and sheet coating operations cannot be adopted. The drying temperature of the coating obtained by the production method is 230 ℃, the drying only needs 2 minutes, and the coating is very suitable for the process requirements of coil coating and sheet coating at present.
In summary, aiming at the defects of the prior art, the production method of the invention firstly coats the high-temperature non-stick coating on the base material, and then the base material is processed into the non-stick appliance, thereby not only reducing the traditional production process flow, but also greatly reducing the environmental pollution problem, and the obtained metal plate with the non-stick coating is non-toxic, meets the food sanitation requirement, and has strong adhesive force of the non-stick coating, high temperature resistance and good non-stick performance.
Detailed Description
The invention relates to a method for producing a metal plate with non-stick paint, which comprises the following steps:
step 1, performing surface purification treatment on a metal plate or coiled material substrate for manufacturing a non-stick appliance, wherein the substrate can be a steel plate, an aluminum plate, a stainless steel plate coiled material and a sheet material, and the surface purification treatment on the substrate belongs to the prior art, such as an acid pickling and phosphating process;
step 2, coating a high-temperature resistant non-stick coating on the surface of the substrate;
step 3, processing the base material into the non-stick utensil, wherein the processing of the base material into the utensil belongs to the prior art, such as a compression molding process;
wherein the high-temperature resistant non-stick coating is produced by the following method:
step A, 609 epoxy resin neutralization treatment, namely firstly mixing xylene, butanol and phosphoric acid, then putting into a reaction pot, then putting into 609 epoxy resin, heating the pot at 160-170 ℃ for stirring after 609 epoxy resin is completely dissolved, keeping the temperature of xylene at 180-190 ℃ for refluxing for 2 hours, immediately cooling and discharging, and filtering and packaging for later use.
Wherein, the 609 epoxy resin is 70 parts by weight, the xylene is 20 parts by weight, the butanol is 10 parts by weight, and the phosphoric acid is 0.013 parts by weight.
B, mixing and dispersing, namely putting the modified 609 epoxy resin liquid obtained in the step 1, the organic silicon resin, the phenylated amino resin, the acetal amino resin and the coupling agent into a paint mixing kettle, and controlling the stirring speed to be 800-; the pearly-lustre base material, the polytetrafluoroethylene powder and the epoxy carbon black slurry are added under the stirring condition, and after the materials are added, the dispersion rotating speed is improved and controlled at 1000-1500RPM until the fineness meets the requirement.
And step C, low-speed mixing and dispersing, namely after the fineness meets the requirement, controlling the stirring rotating speed at 800RPM, adding the pre-mixed coating aluminum silver paste and PMA mixed paste, adjusting the viscosity of the paint by using n-butyl alcohol and cyclohexanone, and strictly preventing the high-speed dispersion from damaging the surface of the coating aluminum silver paste, otherwise causing silver loss and coarsening of a paint film and the like.
And D, filtering to obtain the high-temperature-resistant non-stick coating.
And E, packaging after the detection is qualified to obtain a finished product.
In the above procedure, the amounts of the components are given in the following table:
| name of material | The contents (parts by weight) in the formula |
| 70 percent of modified 609 epoxy resin solution | 35-42 |
| 65 percent of organic silicon resin | 8-12 |
| Coated aluminum paste | 4-8 |
| Epoxy carbon black slurry 10% | 0.2-0.6 |
| Pearlescent base stock | 15-25 |
| 60 percent of phenylated amino resin | 3-5 |
| Polytetrafluoroethylene powder | 3-6 |
| N-butanol | 2-3 |
| PMA | 2-5 |
| Cyclohexanone | 1-3 |
| Coupling agent | 0.2-0.6 |
| Acetal amino resin 70% | 3-6 |
Example 1
609 epoxy resin neutralization treatment, namely firstly mixing 20kg of dimethylbenzene, 10kg of butanol and 0.013kg of phosphoric acid, then putting into a reaction pot, then putting 70kg of 609 epoxy resin, heating the pot at 160 ℃ and 170 ℃ until the 609 epoxy resin is completely dissolved, starting stirring, carrying out heat preservation on the dimethylbenzene at 180-190 ℃ as reflux for 2 hours, immediately cooling and discharging, and filtering and packaging for later use.
Mixing and dispersing, namely firstly putting 35kg of the modified 609 epoxy resin liquid obtained in the step, 10kg of organic silicon resin, 3kg of phenylamine resin, 4kg of acetal amine resin and 0.3kg of silane coupling agent into a paint mixing kettle, wherein the stirring speed is controlled at 800-1000 RPM.
Under the condition of stirring, 15kg of pearlescent base material, 3.5kg of polytetrafluoroethylene powder and 0.2kg of epoxy carbon black slurry are added, and after the materials are added, the dispersion rotating speed is increased and controlled at 1000-plus-1500 RPM until the fineness reaches the requirement.
And (3) low-speed mixing and dispersing, namely after the fineness meets the requirement, controlling the stirring rotating speed at 800RPM, adding 4kg of previously mixed coated aluminum silver paste and 2.5kg of PMA mixed paste, adjusting the viscosity of the paint by using 2kg of n-butyl alcohol and 1.2kg of cyclohexanone, and strictly preventing the high-speed dispersion from damaging the surface of the coated aluminum silver paste, otherwise causing silver falling and coarse returning of a paint film and the like.
Filtering to obtain the high-temperature resistant non-stick coating, and packaging to obtain a finished product after the detection is qualified.
Example 2
609 epoxy resin neutralization treatment, namely firstly mixing 20kg of dimethylbenzene, 10kg of butanol and 0.013kg of phosphoric acid, then putting into a reaction pot, then putting 70kg of 609 epoxy resin, heating the pot at 160 ℃ and 170 ℃ until the 609 epoxy resin is completely dissolved, starting stirring, carrying out heat preservation on the dimethylbenzene at 180-190 ℃ as reflux for 2 hours, immediately cooling and discharging, and filtering and packaging for later use.
Mixing and dispersing, namely firstly putting 40kg of the modified 609 epoxy resin liquid obtained in the step, 10kg of organic silicon resin, 4kg of phenylamine resin, 5kg of acetal amine resin and 0.5kg of silane coupling agent into a paint mixing kettle, wherein the stirring speed is controlled to be 800-1000 RPM.
Under the condition of stirring, 19kg of pearlescent base material, 5kg of polytetrafluoroethylene powder and 0.5kg of epoxy carbon black slurry are added, and after the materials are added, the dispersion rotating speed is increased and controlled at 1500RPM (revolution per minute) of 1000 plus materials until the fineness meets the requirement.
And (3) low-speed mixing and dispersing, namely after the fineness meets the requirement, controlling the stirring rotating speed at 800RPM, adding 6kg of previously mixed coating aluminum silver paste and 4kg of PMA mixed paste, adjusting the viscosity of the paint by using 2.5kg of n-butyl alcohol and 2kg of cyclohexanone, strictly prohibiting high-speed dispersing to prevent the surface of the coating aluminum silver paste from being damaged, otherwise causing silver falling and coarse returning of a paint film and the like.
Filtering to obtain the high-temperature resistant non-stick coating, and packaging to obtain a finished product after the detection is qualified.
Example 3
609 epoxy resin neutralization treatment, namely firstly mixing 20kg of dimethylbenzene, 10kg of butanol and 0.013kg of phosphoric acid, then putting into a reaction pot, then putting 70kg of 609 epoxy resin, heating the pot at 160 ℃ and 170 ℃ until the 609 epoxy resin is completely dissolved, starting stirring, carrying out heat preservation on the dimethylbenzene at 180-190 ℃ as reflux for 2 hours, immediately cooling and discharging, and filtering and packaging for later use.
And (3) mixing and dispersing, namely putting 42kg of the modified 609 epoxy resin liquid obtained in the step, 12kg of organic silicon resin, 4.5kg of phenylamine resin, 4kg of acetal amine resin and 0.6kg of silane coupling agent into a paint mixing kettle, wherein the stirring speed is controlled to be 800-1000 RPM.
Under the condition of stirring, 25kg of pearlescent base material, 6kg of polytetrafluoroethylene powder and 0.5kg of epoxy carbon black slurry are added, and after the materials are added, the dispersion rotating speed is increased and controlled at 1500RPM (revolution per minute) of 1000 plus materials until the fineness meets the requirement.
And (3) low-speed mixing and dispersing, namely after the fineness meets the requirement, controlling the stirring rotating speed at 800RPM, adding 7kg of previously mixed coated aluminum silver paste and 4kg of PMA mixed paste, adjusting the viscosity of the paint by using 3kg of n-butyl alcohol and 2kg of cyclohexanone, and strictly prohibiting high-speed dispersing to prevent the surface of the coated aluminum silver paste from being damaged, otherwise causing silver loss and coarse returning of a paint film and the like.
Filtering to obtain the high-temperature resistant non-stick coating, and packaging to obtain a finished product after the detection is qualified.
Example 4
609 epoxy resin neutralization treatment, namely firstly mixing 20kg of dimethylbenzene, 10kg of butanol and 0.013kg of phosphoric acid, then putting into a reaction pot, then putting 70kg of 609 epoxy resin, heating the pot at 160 ℃ and 170 ℃ until the 609 epoxy resin is completely dissolved, starting stirring, carrying out heat preservation on the dimethylbenzene at 180-190 ℃ as reflux for 2 hours, immediately cooling and discharging, and filtering and packaging for later use.
Mixing and dispersing, namely firstly putting 36kg of the modified 609 epoxy resin liquid obtained in the step, 9kg of organic silicon resin, 5kg of phenylamine resin, 6kg of acetal amine resin and 0.4kg of silane coupling agent into a paint mixing kettle, wherein the stirring speed is controlled at 800-1000 RPM.
Under the condition of stirring, 22kg of pearl base material, 4kg of polytetrafluoroethylene powder and 0.6kg of epoxy carbon black slurry are added, and after the materials are added, the dispersion rotating speed is increased and controlled at 1500RPM (revolution per minute) of 1000 plus materials until the fineness meets the requirement.
And (3) low-speed mixing and dispersing, namely after the fineness meets the requirement, controlling the stirring rotating speed at 800RPM of 500 plus materials, adding 8kg of previously mixed coating aluminum silver paste and 5kg of PMA mixed paste, adjusting the viscosity of the paint by using 2.5kg of n-butyl alcohol and 2kg of cyclohexanone, strictly prohibiting high-speed dispersing to prevent the surface of the coating aluminum silver paste from being damaged, otherwise causing silver falling and coarse returning of a paint film and the like.
Filtering to obtain the high-temperature resistant non-stick coating, and packaging to obtain a finished product after the detection is qualified.
Example 5
609 epoxy resin neutralization treatment, namely firstly mixing 20kg of dimethylbenzene, 10kg of butanol and 0.013kg of phosphoric acid, then putting into a reaction pot, then putting 70kg of 609 epoxy resin, heating the pot at 160 ℃ and 170 ℃ until the 609 epoxy resin is completely dissolved, starting stirring, carrying out heat preservation on the dimethylbenzene at 180-190 ℃ as reflux for 2 hours, immediately cooling and discharging, and filtering and packaging for later use.
Mixing and dispersing, namely putting 38kg of the modified 609 epoxy resin liquid obtained in the step, 9kg of organic silicon resin, 3kg of phenylamine resin, 3kg of acetal amine resin and 0.2kg of silane coupling agent into a paint mixing kettle, wherein the stirring speed is controlled to be 800-1000 RPM.
Under the condition of stirring, 15kg of pearlescent base material, 3kg of polytetrafluoroethylene powder and 0.2kg of epoxy carbon black slurry are added, and after the materials are added, the dispersion rotating speed is increased and controlled at 1500RPM (revolution per minute) of 1000 plus materials until the fineness meets the requirement.
And (3) low-speed mixing and dispersing, namely after the fineness meets the requirement, controlling the stirring rotating speed at 800RPM, adding 4kg of previously mixed coating aluminum silver paste and 2kg of PMA mixed paste, adjusting the viscosity of the paint by using 2kg of n-butyl alcohol and 3kg of cyclohexanone, strictly prohibiting high-speed dispersing to prevent the surface of the coating aluminum silver paste from being damaged, otherwise causing silver loss and coarse returning of a paint film and the like.
Filtering to obtain the high-temperature resistant non-stick coating, and packaging to obtain a finished product after the detection is qualified.
The high-temperature resistant non-stick coating obtained in the above example was tested, and the results of the tests are shown in the following table:
the high-temperature-resistant non-stick coating obtained by the production method can be coated by adopting a color steel plate process flow and can also be coated by adopting an iron printing plate coating process flow. The high-temperature-resistant non-stick paint which is coated on the metal plate and can be processed in a stretching way is formed by crosslinking modified 609 epoxy resin with acetal amino resin (230 ℃) at high temperature in a formula to form a paint film, and has the advantages of strong adhesive force, boiling resistance, hard paint film, good machinability and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A metal sheet with a non-stick coating comprising a metal substrate and a high temperature resistant non-stick coating applied to the substrate, wherein the high temperature resistant non-stick coating is produced by the following method:
step A, 609 epoxy resin neutralization treatment, namely firstly mixing xylene, butanol and phosphoric acid, then putting the mixture into a reaction pot, then putting 609 epoxy resin into the reaction pot, heating the mixture in the reaction pot at 160-170 ℃ until the 609 epoxy resin is completely dissolved, stirring the mixture, immediately cooling and discharging the mixture after the xylene is kept at 180-190 ℃ as reflux for 2 hours, and filtering and packaging the mixture for later use;
b, mixing and dispersing, namely putting the modified 609 epoxy resin liquid obtained in the step A, the organic silicon resin, the phenylated amino resin, the acetal amino resin and the coupling agent into a paint mixing kettle, and controlling the stirring speed to be 800-1000 RPM; adding the pearlescent base material, the polytetrafluoroethylene powder and the epoxy carbon black slurry under the stirring condition, and after the feeding is finished, increasing the dispersion rotating speed and controlling the dispersion rotating speed at 1000-1500RPM until the fineness meets the requirement; in the step B, the modified 609 epoxy resin liquid is used in 35-42 parts by weight; the dosage of the organic silicon resin is 8-12 parts by weight; 3-5 parts of phenylated amino resin; the usage amount of the acetal amino resin is 3-6 parts by weight; the dosage of the coupling agent is 0.2 to 0.6 weight portion;
c, low-speed mixing and dispersing, namely after the fineness meets the requirement, controlling the stirring rotating speed at 800RPM, adding pre-mixed coating aluminum silver paste and PMA mixed paste, and adjusting the viscosity of the paint by using n-butyl alcohol and cyclohexanone;
and D, filtering to obtain the high-temperature-resistant non-stick coating.
2. A metal sheet with non-stick coating according to claim 1, characterized in that: in the step a, 609 epoxy resin was used in an amount of 70 parts by weight, xylene was used in an amount of 20 parts by weight, butanol was used in an amount of 10 parts by weight, and phosphoric acid was used in an amount of 0.013 parts by weight.
3. A metal sheet with non-stick coating according to claim 1, characterized in that: the coupling agent is a silane coupling agent.
4. A metal sheet with non-stick coating according to claim 1, characterized in that: in the step B, the dosage of the pearlescent base material is 15-25 parts by weight; 3-6 parts of polytetrafluoroethylene powder; the epoxy carbon black slurry is used in 0.2-0.6 weight portions.
5. A metal sheet with non-stick coating according to claim 1, characterized in that: in the step C, the using amount of the coated aluminum silver paste is 4-8 parts by weight; the dosage of PMA mixed slurry is 2-5 weight portions.
6. A metal sheet with non-stick coating according to claim 1, characterized in that: in the step C, the using amount of the n-butanol is 2 to 3 parts by weight; the using amount of the cyclohexanone is 1-3 parts by weight.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442619Y (en) * | 2000-10-19 | 2001-08-15 | 温岭市倍得福电器有限公司 | High-strength composite bottom non-sticking lining pot |
| CN103205203A (en) * | 2013-01-15 | 2013-07-17 | 浙江鹏孚隆科技有限公司 | Nanometer SiO2 hybrid polyester modified organosilicon non-stick paint and coating method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4223069A (en) * | 1978-12-29 | 1980-09-16 | E. I. Du Pont De Nemours And Company | Substrate with multi-layer nonstick coating |
| KR20110019568A (en) * | 2009-08-20 | 2011-02-28 | 황임규 | Non-sticker paint composition |
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2017
- 2017-10-20 CN CN201710983736.9A patent/CN107641425B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442619Y (en) * | 2000-10-19 | 2001-08-15 | 温岭市倍得福电器有限公司 | High-strength composite bottom non-sticking lining pot |
| CN103205203A (en) * | 2013-01-15 | 2013-07-17 | 浙江鹏孚隆科技有限公司 | Nanometer SiO2 hybrid polyester modified organosilicon non-stick paint and coating method thereof |
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Denomination of invention: Metal plate with non stick coating Effective date of registration: 20210923 Granted publication date: 20200303 Pledgee: Zhejiang Linhai Rural Commercial Bank Co.,Ltd. Baishuiyang sub branch Pledgor: ZHEJIANG GENYUAN PAINT SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2021330001766 |
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Date of cancellation: 20230630 Granted publication date: 20200303 Pledgee: Zhejiang Linhai Rural Commercial Bank Co.,Ltd. Baishuiyang sub branch Pledgor: ZHEJIANG GENYUAN PAINT SCIENCE AND TECHNOLOGY CO.,LTD. Registration number: Y2021330001766 |
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Denomination of invention: A metal plate with non stick coating Effective date of registration: 20230704 Granted publication date: 20200303 Pledgee: Zhejiang Linhai Rural Commercial Bank Co.,Ltd. Baishuiyang sub branch Pledgor: ZHEJIANG GENYUAN PAINT SCIENCE AND TECHNOLOGY CO.,LTD. Registration number: Y2023330001377 |